<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card>
      <el-row :gutter="20">
        <!-- 搜索与添加区域 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column label="序号" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的对话框 -->
    <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <!-- 内容主题区域 -->
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部按钮区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //验证邮箱的规则
    var checkEmail=(rule,value,cb)=>{
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if(regEmail.test(value)){
        //合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    //验证手机号的规则
    var checkMobile=(rule,value,cb)=>{
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if(regMobile.test(value)){
        //合法的手机号
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: '',
        //当前的页数
        pagenum: 1,
        //当前每页显示多少条数据
        pagesize: 2
      },
      userList: [],
      total: 0,
      //控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      //添加用户的表单数据
      addForm:{
        username:'',
        password:'',
        email:'',
        mobile:''
      },
      //添加表单的验证规则对象
      addFormRules:{
        username:[
          {required:true,message:'请输入用户名',trigger:'blur'},
          {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
        ],
        password:[
          {required:true,message:'请输入密码',trigger:'blur'},
          {min:6,max:15,message:'密码的长度在6~15个字符之间',trigger:'blur'}
        ],
        email:[
          {required:true,message:'请输入邮箱',trigger:'blur'},
          {validator:checkEmail,trigger:'blur'}
        ],
        mobile:[
          {required:true,message:'请输入手机号',trigger:'blur'},
          {validator:checkMobile,trigger:'blur'}
        ]
      },
      //控制修改对话框的显示与隐藏
      editDialogVisible:false,
      //查询到的用户信息对象
      editForm:'',
      //修改表单的验证规则对象
      editFormRules:{
        email:[
          {required:true,message:'请输入邮箱',trigger:'blur'},
          {validator:checkEmail,trigger:'blur'}
        ],
        mobile:[
          {required:true,message:'请输入手机号',trigger:'blur'},
          {validator:checkMobile,trigger:'blur'}
        ]
      },
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const res = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res.data);
      this.data = res.data.meta
      if (this.data.status !== 200)
        return this.$message.error('获取用户列表失败')
      this.userList = res.data.data.users
      this.total = res.data.data.total
      // this.$message.error("获取用户列表成功");
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      // console.log(newSize);
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      // console.log(newPage);
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    //监听switch开关的改变
    async userStateChanged(userinfo) {
      console.log(userinfo)
      const res = await this.$http.put(
        'users/' + userinfo.id + '/state/' + userinfo.mg_state
      )
      this.data = res.data.meta
      if (this.data.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    //监听添加用户对话框的关闭事件
    addDialogClosed(){
      this.$refs.addFormRef.resetFields()
    },
    //点击按钮，添加新用户
    addUser(){
      this.$refs.addFormRef.validate(async valid=>{
        // console.log(valid);
        if(!valid) return
        //预校验通过的话，可以发起添加用户的网络请求
        const res = await this.$http.post('users',this.addForm)
        this.data=res.data.meta
        if(this.data.status !==201){
          this.$message.error("添加用户失败!")
        }
        this.$message.success("添加用户成功!")
        //隐藏添加用户的对话框
        this.addDialogVisible=false
        //重新获取用户列表的数据
        this.getUserList()
      })
    },
    //展示编辑用户信息的对话框
    async showEditDialog(id){
      // console.log(id)
      const res = await this.$http.get('users/'+id)
      this.data=res.data.meta
      if(this.data.status !==200){
        return this.$message.error('查询用户信息失败！')
      }
      this.editForm=res.data.data
      this.editDialogVisible=true
    },
    //监听修改用户对话框的关闭事件
    editDialogClosed(){
      this.$refs.editFormRef.resetFields()
    },
    //修改用户信息并提交，先进行预验证
    editUserInfo(){
      this.$refs.editFormRef.validate(async valid=>{
        // console.log(valid)//预校验通过返回true
        if(!valid) return
        //发起修改用户信息的数据请求
        const res=await this.$http.put('users/'+this.editForm.id,{email:this.editForm.email,mobile:this.editForm.mobile})
        this.data=res.data.meta
        if(this.data.status !==200){
          return this.$message.error('更新用户信息失败！')
        }
        //关闭对话框
        this.editDialogVisible=false
        //刷新数据列表
        this.getUserList()
        //提示修改成功
        this.$message.success('更新用户信息成功！')
      })
    },
    async removeUserById(id){
      // console.log(id)//点击删除后的id
      //弹框询问用户是否删除数据
      const confirmResult =await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err=>{
        return err
      })
      // console.log(res) //promise
      //如果用户确认删除，则返回值为字符串confirm
      //如果用户取消删除，则返回值为字符串cancel
      // console.log(confirmResult)
      if(confirmResult!=='confirm'){
        return this.$message.info('已取消删除')
      }
      // console.log('确认了删除')
      const res=await this.$http.delete('users/'+id)
      if(res.data.meta.status!==200){
        return this.$message.error('删除用户失败！')
      }
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
  }
}
</script>

<style lang="less" scoped>
.el-breadcrumb {
  margin-bottom: 15px;
  font-size: 12px;
}
.el-card {
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1) !important;
}
.el-table {
  margin-top: 20px;
  font-size: 12px;
}
.el-pagination {
  margin-top: 20px;
}
</style>